practice exam question

Structural Layout Vignette and Multiple Choice

practice exam question

Postby lule99 » Sat Sep 02, 2017 5:02 pm

Answer from question 64 states that:
Bldg fundamental period of vibration is directly proportional to mass... so based on their answer if you increase the mass of a bldg you are increasing the bldg period of vibration.
I wonder how... cause I thought that if you increase bldg mass (meaning you make it heavier) then the bldg period of vibration decreases (contrary to what they say...)
If someone could clarify I would really appreciate it...

Thanks a lot guys!
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Re: practice exam question

Postby Coach » Sat Sep 02, 2017 10:53 pm

Don't confuse period of vibration with frequency.
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